Michael Jeffers Staff asked 13 years ago
For the second consecutive year my carrot crop has been destroyed by root fly (not grown in the same area of the vegetable garden this year). Adjacent rows of parsnips were unaffected last year, but I’m not sure if they are affected this year. Does the pest persist in the soil ? I don’t plan to grow carrots next year, but is it likely to recur when I try again or is there anything that can be done to prevent it?